Hello I got free tank from my buddy moved out of state and has a lot expensive fish in it they been fine sence we moved it to my house but out of nowhere notice spots on 3fish so my question is should I tear down tank put all fish in qt it’s a lot of fish in big display tank I can qt fish I’m able to do that I have two extra tanks for qt but just nerves on what to do I mean I no in this hobby you loss stuff but I’ve seen videos on saved fish but just going crazy over here


